Zocalo is a lightweight web feed reader for the Sharp ROM. It is designed for the PDA form factor, i.e. make sensible use of a small screen, use keyboard or stylus to navigate everything, don't use a lot of memory or disk space. It can handle RSS, RSS RDF and Atom.

I have been testing Zocalo for a few months now and it seems stable. There are a few minor issues that I want to improve in future releases and I have a lot of ideas for features that I want to implement. I plan to port to the other Zaurus Linuxes.

This looks like a missing configuration file, or missing parameters in that file. Is it possible that you are using an old configuration, and are using it with the new version of the software? If so, try movimg the config somewhere out of the way, and restart the program. It migh shed some light.